Troubleshooting Without Diagnostics
Diagnostic Front Panel LEDs and Audible Codes
Diagnostic Front Panel LEDs and Audible Codes
Activity | Beeps | Possible Cause | Recommended Action |
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Green Power LED | None | Computer on. | None |
On. |
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Green Power LED | None | Computer in |
flashes every two |
| Suspend to RAM |
seconds. |
| mode (some |
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| models only) or |
|
| normal Suspend |
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| mode. |
Not support wake up by mouse/ keyboard.
Should be Press Power button.
CPU Fan weak | 2 | Processor thermal | 1. | Ensure that the computer air vents |
(RPM < 600) or not |
| protection |
| are not blocked and the processor |
turning, Display |
| activated: |
| cooling fan is running. |
Warning message |
| A fan may be | 2. | Open hood, press power button, |
and Long Beep for |
| blocked or not |
| and see if the processor fan spins. |
5 sec and shut |
| turning. |
| If the processor fan is not |
down. |
| OR |
| spinning, make sure the fan's |
System Fan weak |
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| ||
| The heatsink/fan |
| cable is plugged onto the system | |
(RPM < 600) or not |
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| board header. Ensure the fan is | |
| assembly is not |
| ||
turning, Display |
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| fully/properly seated or installed. | |
| properly attached |
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Warning message |
| 3. | If fan is plugged in and seated | |
| to the processor. | |||
and Long Beep for |
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| properly, but is not spinning, then | |
5 sec and shut |
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| replace processor fan. | |
down. |
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| 4. | Reseat processor heatsink and | |
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| verify that the fan assembly is |
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| properly attached. |
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| 5. | Contact an authorized reseller or |
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| service provider. |
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Red Power LED | 5 | 1. | Reseat DIMMs. Power on the | |
flashes five times, |
| error. |
| system. |
one every second, |
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| 2. | Replace DIMMs one at a time to |
followed by a 2 |
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| isolate the faulty module. | |
second pause. Also |
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| 3. | Replace | |
5 simultaneous |
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| HP memory. | |
beeps will be |
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heard. |
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| 4. | Replace the system board. |
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Red Power LED | 6 | For systems with a graphics card: | ||
flashes 6 times, one |
| error. | 1. | Reseat the graphics card. Power |
every second, |
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| on the system. | |
followed by a 2 |
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| 2. | Replace the graphics card. | |
second pause. Also |
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6 simultaneous |
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| 3. | Replace the system board. |
beeps will be |
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| For systems with integrated graphics, | |
heard. |
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| replace the system board. | |
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Service Reference Guide |